{ "data": { "a": { "slug": "late", "name": "Zernio (formerly Late) API + MCP", "vendor": "Zernio", "vendorUrl": "https://zernio.com", "kind": "http-api", "category": "social-media", "summary": "Social media and messaging API (formerly Late at getlate.dev, renamed Zernio in 2026) for 16 channels plus ads, inbox, SMS and WhatsApp.", "url": "https://www.anchorterminal.com/tools/late", "markdownUrl": "https://www.anchorterminal.com/tools/late.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/late.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/late.json", "dns": "late.grade.anchorterminal.com", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://zernio.com/api/v1", "packages": [ { "registry": "npm", "name": "@zernio/node" }, { "registry": "pypi", "name": "zernio-sdk" } ], "auth": "mixed", "authNotes": "API key as a Bearer token. The hosted MCP accepts OAuth 2.1 with PKCE and dynamic client registration, or the API key as a Bearer header. A local stdio MCP ships in the Python SDK (uvx --from zernio-sdk[mcp] zernio-mcp).", "pricing": "freemium", "pricingNotes": "Billed per connected account each month, no plans. Accounts 1 and 2 free with no card, 3 to 10 at $6 each, 11 to 100 at $3, 101 and up at $1 (10 accounts cost $48). 10,000 inbox messages a month free, then $1 per 10,000. X API calls are passed through at $0.005 to $0.20 a request. SMS from $0.008 a message in the US (https://zernio.com/pricing).", "priceSummary": "$6 / mo", "where": "both", "x402": { "level": "no", "evidence": "No x402 in docs, llms.txt or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 45849, "pypiWeekly": 44099, "asOf": "2026-09-30" }, "docsUrl": "https://docs.zernio.com", "llmsTxt": "https://docs.zernio.com/llms.txt", "openapi": "https://zernio.com/openapi.yaml", "registryName": "com.zernio/zernio", "capabilities": [ "social.post", "social.schedule", "social.analytics", "social.comments", "social.media-upload" ], "tags": [ "hosted", "freemium", "free-tier", "no-card", "mcp", "llms-txt", "openapi", "typescript", "python", "webhooks", "sms", "whatsapp" ], "lastRelease": "2026-11-01", "graded": true, "anchor": { "graded": true, "score": 69, "grade": "B", "agentReady": false, "rank": 231, "ranked": true, "rankOf": 1272, "categoryRank": 1, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 88, "maintenance": 87, "payments": 40, "reliability": 80, "schema": 83, "security": 65, "transparency": 71 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-01" }, "negative": -5, "negativeNotes": [ "2026-09-29 to 2026-10-29. The changelog marks changes `breaking_change` on the day they ship, with no notice period. Timestamps without an offset now follow the profile timezone (29 September), accountId is required to edit a multi-account post (30 September), X ads creation rejects creative fields (1 October), and top-ups and payout batches no longer return a Checkout `url` (29 October). Repeats of one kind fold into one term. -3 (https://docs.zernio.com/changelog)", "2026-11-01. The changelog page says nothing on it breaks a working integration and that a breaking change ships only as a new path version, while the same page lists 15 `breaking_change` entries in v1 from 2 to 29 October. A misleading claim, -2 (https://docs.zernio.com/changelog)" ], "verdict": "Idempotency-Key on post creation and other writes, kept 24 hours, and a public DPA with a subprocessor list. Breaking changes keep shipping inside v1 on the day they're marked, 15 from 2 to 29 October 2026, while the changelog says they ship only as a new path version.", "bestFor": "Agents and SaaS products that need posting, inbox and ads through one well-specified API with safe retries.", "strengths": [ "Idempotency-Key on post creation and other writes, kept 24 hours, with an Idempotent-Replayed header on replays", "OpenAPI 3.1 spec (API version 1.431.1, 761 paths) and SDKs regenerated from it several times a day", "Hosted MCP with OAuth scopes, tool annotations and search_tools for the long tail", "Restricted keys created through POST /v1/api-keys with any of ten resource groups switched off, or limited to chosen profiles", "A public DPA and a subprocessor list with purpose, location and transfer safeguard for 25 providers" ], "weaknesses": [ "Breaking changes ship inside v1 on the day they're marked, 15 from 2 to 29 October 2026, while the changelog says they ship only as a new path version", "Reddit has been unavailable since 19 October 2026, and Reddit and TikTok posting budgets are shared across all Zernio customers", "The Node SDK is pre-1.0 (0.2.1420), and both SDKs release many times a day", "No security.txt or disclosure route, and no prompt-injection guidance for inbox, comment and DM text", "Renamed from Late in 2026, so docs and packages exist under both names" ], "agentNotes": [ "Send an Idempotency-Key (a fresh UUID per post) on POST /v1/posts and reuse it only on a retry", "Give timestamps an explicit offset, because times without one follow the profile timezone when it has one", "Pass accountId when editing or unpublishing a post that targets several accounts", "Wait Retry-After on 429. Analytics endpoints have their own per-second window", "Read the changelog's `breaking_change` entries before each deploy and pin the SDK version, because v1 changes without a new path" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 4, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69 } ], "editorialScores": { "ergonomics": 88, "maintenance": 87, "payments": 40, "reliability": 80, "schema": 83, "security": 65, "transparency": 62 }, "provenanceScore": 79, "checked": { "categories": { "ergonomics": "2026-11-01", "maintenance": "2026-11-01", "payments": "2026-11-01", "reliability": "2026-11-01", "schema": "2026-11-01", "security": "2026-11-01", "transparency": "2026-11-01" }, "last": "2026-11-01", "lastMoved": "2026-11-01", "oldest": "2026-11-01", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl https://zernio.com/api/v1/accounts -H \"Authorization: Bearer $ZERNIO_API_KEY\"", "claudeCode": "claude mcp add --transport http zernio https://mcp.zernio.com/mcp", "config": { "mcpServers": { "zernio": { "args": [ "--from", "zernio-sdk[mcp]", "zernio-mcp" ], "command": "uvx", "env": { "ZERNIO_API_KEY": "${ZERNIO_API_KEY}" } } } } }, "letme": { "capability": "https://letme.dev/social.post", "tool": "https://letme.dev/late" }, "area": "communication", "unitPrices": [ { "item": "Connected account (3 to 10)", "unit": "month", "usd": 6, "note": "per account, first 2 free" }, { "item": "Connected account (11 to 100)", "unit": "month", "usd": 3, "note": "per account" }, { "item": "Connected account (101 and up)", "unit": "month", "usd": 1, "note": "per account" }, { "item": "SMS to the US", "unit": "message", "usd": 0.008 } ], "provenance": { "legalEntity": "ZERNIO SOFTWARE SL", "domain": "zernio.com", "domainRegistered": "2025-08-14", "endpointOnVendorDomain": true, "terms": "https://zernio.com/tos", "privacy": "https://zernio.com/privacy-policy", "statusPage": "https://www.zernio-status.com", "changelog": "https://docs.zernio.com/changelog", "securityTxt": "none", "checked": "2026-11-01", "notes": [ "Formerly Late at getlate.dev (registered 2025-06-06), which now redirects to zernio.com", "Rebrand date not published. @zernio/node first appeared on npm on 2026-03-17", "npm weekly counts @zernio/node only. The legacy @getlatedev/node had 29,912 and late-sdk 18,958 more", "The terms were last updated 9 October 2026 and the privacy policy 26 October 2026. A DPA (19 October 2026) and a subprocessor list (9 October 2026) are published at zernio.com/dpa and zernio.com/subprocessors.", "zernio.com/.well-known/security.txt answers 404 on 1 November." ], "score": 79 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/late.json", "live": { "slug": "late", "probe": { "target": "https://zernio.com/api/v1", "method": "get", "lastAt": "2026-11-03T18:20:09.746636431Z", "lastOk": true, "lastStatus": 200, "lastMs": 248, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 65, "p95ms24h": 252, "samples24h": 250, "samples30d": 8081, "days": [ { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 255, "ok": 255 }, { "date": "2026-10-20", "probes": 252, "ok": 252 }, { "date": "2026-10-21", "probes": 253, "ok": 253 }, { "date": "2026-10-22", "probes": 253, "ok": 253 }, { "date": "2026-10-23", "probes": 248, "ok": 248 }, { "date": "2026-10-24", "probes": 251, "ok": 251 }, { "date": "2026-10-25", "probes": 250, "ok": 250 }, { "date": "2026-10-26", "probes": 252, "ok": 252 }, { "date": "2026-10-27", "probes": 249, "ok": 249 }, { "date": "2026-10-28", "probes": 251, "ok": 251 }, { "date": "2026-10-29", "probes": 248, "ok": 248 }, { "date": "2026-10-30", "probes": 249, "ok": 249 }, { "date": "2026-10-31", "probes": 251, "ok": 251 }, { "date": "2026-11-01", "probes": 249, "ok": 249 }, { "date": "2026-11-02", "probes": 250, "ok": 250 }, { "date": "2026-11-03", "probes": 191, "ok": 191 } ] }, "vendorStatus": { "page": "https://www.zernio-status.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-03T17:13:00.917833053Z" }, "versions": [ { "registry": "mcp-registry", "name": "com.zernio/zernio", "version": "1.0.0", "seenAt": "2026-11-03T16:51:07.971176756Z" }, { "registry": "npm", "name": "@zernio/node", "version": "0.2.1439", "seenAt": "2026-11-02T19:28:13.846811549Z" }, { "registry": "pypi", "name": "zernio-sdk", "version": "1.4.1495", "released": "2026-11-02", "seenAt": "2026-11-02T19:28:14.310141056Z" } ], "npmWeekly": 63691, "pypiWeekly": 38267, "securityTxt": { "url": "https://zernio.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-03T15:51:32.693317737Z" }, "llmsTxt": { "url": "https://docs.zernio.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-03T15:20:12.832316191Z" }, "domain": { "domain": "zernio.com", "registered": "2025-08-14", "source": "https://rdap.verisign.com/com/v1/domain/zernio.com", "checkedAt": "2026-11-01T14:18:36.125667245Z" }, "pages": [ { "url": "https://docs.zernio.com/changelog", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-03T07:49:27.307062982Z", "changedAt": "2026-11-03T07:49:27.307062982Z", "fingerprint": "169692849494" }, { "url": "https://zernio.com/rebrand", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-03T08:14:00.413749659Z", "changedAt": "2026-11-03T08:14:00.413749659Z", "fingerprint": "1917d62e07c8" }, { "url": "https://zernio.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-11-03T08:13:55.834704312Z", "changedAt": "2026-11-03T08:13:55.834704312Z", "fingerprint": "c6d40855b27c" }, { "url": "https://zernio.com/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-03T08:13:58.166395425Z", "changedAt": "2026-11-03T08:13:58.166395425Z", "fingerprint": "275c2b98b9f9" }, { "url": "https://zernio.com/tos", "kind": "terms", "status": 200, "checkedAt": "2026-11-03T08:14:02.326869176Z", "changedAt": "2026-11-03T08:14:02.326869176Z", "fingerprint": "1dde82d36331" } ], "updatedAt": "2026-11-03T18:20:09.746636431Z" } }, "answer": "Zernio (formerly Late) API + MCP scores 69 (B) on agent readiness against Repostit's 32.5 (F), and leads in every scored category.", "b": { "slug": "repostit", "name": "Repostit", "vendor": "Repostit LLC", "vendorUrl": "https://repostit.io", "kind": "platform", "category": "social-media", "summary": "Repostit is a hosted service that reposts short videos from one connected social account to others and schedules new posts across eight networks. Agents reach it through a remote OAuth MCP connector listed for Claude and ChatGPT.", "url": "https://www.anchorterminal.com/tools/repostit", "markdownUrl": "https://www.anchorterminal.com/tools/repostit.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/repostit.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/repostit.json", "dns": "repostit.grade.anchorterminal.com", "license": "Proprietary hosted service under Repostit's terms of service (effective 7 March 2025), which name Repostit LLC of Newark, Delaware. No source, SDK or package is published", "transports": [ "streamable-http" ], "remoteUrl": "https://repostit-mcp-cfjcykgqda-uc.a.run.app/mcp/v1.1", "packages": [], "auth": "oauth", "authNotes": "The connector at https://repostit-mcp-cfjcykgqda-uc.a.run.app/mcp/v1.1 (named on Repostit's own Claude connector page) uses OAuth with dynamic client registration and no client secret; the user signs in to Repostit and reviews the permissions (read connected accounts, create workflows and Briefs, schedule or publish, read delivery status). Approved offline access renews for up to 90 days from the first authorisation. Social-network sign-ins happen inside Repostit and provider tokens are not passed to Claude or ChatGPT. PKCE S256 is stated only in third-party metadata. No scopes, API keys or token lifetimes are published, and revocation is by disconnecting in the client or asking support@repostit.io.", "pricing": "paid", "pricingNotes": "Every reposting plan starts with a 14-day trial with no credit card, limited to 10 posts counted per destination, 3 workflows and one account per network. Basic $5 a month (10 video posts, monthly only), Starter $14 a month or $10 billed yearly, Influencer $29 or $20 (5 accounts per network), Agency $149 or $99 (30 accounts per network); paid plans above Basic have unlimited automated posts and every plan includes the Claude and ChatGPT connector. Clips is priced separately by minutes, with a free allowance of 10 videos or 100 minutes. Fees are non-refundable except where law requires (https://repostit.io/pricing/ and https://repostit.io/docs/repostit-refund-policy/, checked 2026-11-03).", "priceSummary": "$5 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 on the pricing page, the help centre, the two connector pages, the terms or the privacy policy (checked 2026-11-03). Plans are paid in the app through unnamed third-party payment processors per the terms.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-03" }, "docsUrl": "https://repostit.io/docs/", "llmsTxt": "https://repostit.io/llms.txt", "registryName": "io.github.hax98/repostit", "capabilities": [ "social.post", "social.schedule", "social.media-upload" ], "tags": [ "hosted", "official", "closed-source", "mcp", "remote-mcp", "mcp-registry", "oauth", "llms-txt", "video", "free-trial", "no-card", "paid", "no-status-page" ], "lastRelease": "2026-10-23", "graded": true, "anchor": { "graded": true, "score": 32.5, "grade": "F", "agentReady": false, "rank": 1191, "ranked": true, "rankOf": 1272, "categoryRank": 16, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 25, "maintenance": 56, "payments": 30, "reliability": 26, "schema": 27, "security": 44, "transparency": 29 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-03" }, "negative": 0, "verdict": "An OAuth connector lets an agent list accounts, draft and schedule posts, build reposting workflows and check delivery, with drafts saved before anything publishes and a 14-day trial without a card. Tool names, schemas, scopes and error shapes are unpublished, the endpoint sits on a Cloud Run host, and there is no status page, public API or named subprocessor.", "bestFor": "Creators, small businesses and agencies who post short vertical video on one network and want an assistant in Claude or ChatGPT to copy it to others on a schedule, set up reposting workflows and confirm what went out, without writing code.", "strengths": [ "Remote MCP connector with OAuth and dynamic client registration, listed for Claude and ChatGPT and in the official MCP registry, with social-network tokens kept inside Repostit", "Briefs are saved as drafts, queued Briefs are locked against a second send and Manual workflows wait for approval, so nothing publishes on creation alone", "Delivery checks report a result per destination with public links, and assistant-made posts show each step in the dashboard's Comments \u0026 Activity", "Eight networks with published media rules (20 MB images, carousel caps per network, 9:16 video at 1080 by 1920) and per-network failure guides", "14-day trial with no card, then plans from $5 a month, with the connector included in every plan" ], "weaknesses": [ "No tool names, input schemas, annotations, scopes or error shapes are published, and no public REST API, SDK or OpenAPI file exists", "The MCP endpoint is on a run.app host, not repostit.io, and the registry entry sits under a personal GitHub namespace", "No status page, incident history, SLA, request rate limit or 429 guidance; no help page says failed posts are retried", "The privacy policy names no subprocessors, retention periods or data locations and does not mention the connector or its 90-day offline access", "The terms name Repostit LLC while every footer says Repostit, Inc., and the ChatGPT page and directory disagree on whether version 1.1 is out" ], "agentNotes": [ "List connected accounts first and confirm names and platforms with the user before choosing destinations; a missing account must be connected in Repostit Connections, not through the agent.", "Pass media as a downloadable HTTPS URL, never a local filename, and give every scheduled time with an explicit timezone.", "Treat Queued as accepted, not published; check delivery status and public links before reporting success, and check the existing result before any retry to avoid duplicate posts.", "Creating a future-content workflow makes it publish on its own once active; prefer existing-content workflows or Manual mode when the user wants to review first.", "On the trial, each destination counts as one of 10 posts and Basic allows 10 video posts a month; ask before fanning one Brief out to many networks." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "F", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 32.5 } ], "editorialScores": { "ergonomics": 25, "maintenance": 56, "payments": 30, "reliability": 26, "schema": 27, "security": 44, "transparency": 27 }, "provenanceScore": 31, "checked": { "categories": { "ergonomics": "2026-11-03", "maintenance": "2026-11-03", "payments": "2026-11-03", "reliability": "2026-11-03", "schema": "2026-11-03", "security": "2026-11-03", "transparency": "2026-11-03" }, "last": "2026-11-03", "oldest": "2026-11-03", "stale": false, "staleAfterDays": 90 } }, "connect": { "config": { "mcpServers": { "repostit": { "type": "http", "url": "https://repostit-mcp-cfjcykgqda-uc.a.run.app/mcp/v1.1" } } } }, "letme": { "capability": "https://letme.dev/social.post", "tool": "https://letme.dev/repostit" }, "area": "communication", "unitPrices": [ { "item": "Basic plan", "unit": "month", "usd": 5, "note": "monthly billing only; 10 video posts a month, one account per network" }, { "item": "Starter plan", "unit": "month", "usd": 14, "note": "$10 a month billed yearly; unlimited automated posts, one account per network" }, { "item": "Influencer plan", "unit": "month", "usd": 29, "note": "$20 a month billed yearly; unlimited automated posts, 5 accounts per network" }, { "item": "Agency plan", "unit": "month", "usd": 149, "note": "$99 a month billed yearly; unlimited automated posts, 30 accounts per network" } ], "provenance": { "legalEntity": "Repostit LLC", "domain": "repostit.io", "domainRegistered": "", "endpointOnVendorDomain": false, "terms": "https://repostit.io/terms-of-service/", "privacy": "https://repostit.io/privacy-policy/", "statusPage": "", "changelog": "", "securityTxt": "unknown", "checked": "2026-11-03", "notes": [ "The terms of service (effective 7 March 2025, no later revision) say the service is operated by Repostit LLC, 254 Chapman Road Ste 208, Newark, DE 19702, under Delaware law. The footer of every page read says '© 2026 Repostit, Inc.', and the privacy policy (29 July 2026) names only Repostit.io with the same address. Recorded as an inconsistency; the legal entity is taken from the terms.", "The MCP endpoint is on repostit-mcp-cfjcykgqda-uc.a.run.app, a Google Cloud Run host, not a repostit.io host. Repostit's own page https://app.repostit.io/claude-connector.html names it. Its robots.txt did not load, so nothing on that host was fetched, including the OAuth well-known documents.", "/whats-new/ lists undated items (the Claude and ChatGPT connector among them), so it is not recorded as a changelog. No status page is linked anywhere; /status/ and /.well-known/security.txt did not load through our reader, which also fails on the home page, so security.txt is recorded as unknown.", "RDAP for repostit.io and the Wayback Machine were not read (the fetch needed an approval that did not come). firstReleased is 2025-03-07, the terms' effective date, the earliest first-hand date found; the connector's earliest date is the public ChatGPT app described on a page updated 24 September 2026, and the first registry version is 17 October 2026.", "robots.txt on repostit.io allows everything except /api/, which was not fetched. app.repostit.io answers /robots.txt with the app's HTML shell and no directives; only the two connector pages and /llms.txt were read there." ], "score": 31 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/repostit.json", "live": { "slug": "repostit", "probe": { "target": "https://repostit-mcp-cfjcykgqda-uc.a.run.app/mcp/v1.1", "method": "get", "lastAt": "2026-11-03T18:20:19.53499017Z", "lastOk": true, "lastStatus": 405, "lastMs": 151, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 155, "p95ms24h": 196, "samples24h": 44, "samples30d": 44, "days": [ { "date": "2026-11-03", "probes": 44, "ok": 44 } ] }, "versions": [ { "registry": "mcp-registry", "name": "io.github.hax98/repostit", "version": "2026.10.23", "seenAt": "2026-11-03T16:51:07.971176756Z" } ], "securityTxt": { "url": "https://repostit.io/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-03T15:51:15.292804476Z" }, "llmsTxt": { "url": "https://repostit.io/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-03T15:20:58.151732377Z" }, "updatedAt": "2026-11-03T18:20:19.53499017Z" } }, "edges": [ { "by": 63, "category": "ergonomics", "leads": "late", "name": "Agent ergonomics", "reasons": { "a": "The tools page lists 20 core tools and says tools/list returns about 50 everyday ones, with search_tools and call_tool loading the long tail on demand (5 plus 10). Page and cursor pagination on list endpoints (20). ErrorResponse codes such as idempotency_conflict, and the MCP returns the list of accounts when account_id is ambiguous (18). Idempotency-Key with 24-hour keys and an Idempotent-Replayed header, plus readOnlyHint, destructiveHint and openWorldHint on tools (20). The SDKs page lists official clients in eight languages, including Node and Python (15). 15+20+18+20+15 = 88.", "b": "MCP reading. The tool count is not published. The connector pages describe seven actions (list accounts, create, schedule and publish a Brief, check delivery, create a workflow, send a connection link), which suggests a small set, but the definitions were not read, so a middle reading rather than full marks (10 of 25). No pagination, filtering or output-size controls are documented (0 of 20). Delivery checks report a result per destination with public links when the network gives one, and the help centre lists failure reasons per network, but no error codes or connector error messages are documented (5 of 20). No idempotency key and no readOnlyHint or destructiveHint seen; Briefs start as drafts, queued Briefs are locked against a second send, Manual workflows hold posts for approval and the guidance says to check before retrying (6 of 20). Requests are made in plain language with few stated requirements (an HTTPS media URL, a timezone); no SDK in any language (4 of 15). 10+0+5+6+4 = 25." }, "scores": { "a": 88, "b": 25 } }, { "by": 56, "category": "schema", "leads": "late", "name": "Schema \u0026 documentation", "reasons": { "a": "OpenAPI 3.1 at zernio.com/openapi.yaml, API version 1.431.1 on 1 November with 761 paths (25). llms.txt and Markdown pages (10). The MCP has a docs_search tool and annotated tools. We didn't read tool descriptions in source (12). Inputs typed in the spec with resource groups and enums (12). A shared ErrorResponse with a machine code and message, X-Request-Id on responses, examples on operations (12). Dated public changelog with JSON and RSS feeds and a changelog API, but breaking changes ship inside v1, 15 of them marked `breaking_change` from 2 to 29 October (12). 25+10+12+12+12+12 = 83.", "b": "MCP reading, since the connector is the only surface an outside agent reaches; no public REST API, developer page, OpenAPI file, SDK or package was found in the help centre, /whats-new/, the sitemap, llms.txt, GitHub, npm or the MCP registry. No tool names or input schemas are published anywhere, and no session was opened to read them (0 of 25). llms.txt exists, but it is a Rank Math index of site URLs that includes theme placeholder entries, and help articles are HTML only (5 of 10). The Claude connector page says what each step is for and when not to use it, list accounts before choosing a destination, a Brief saves a draft and neither publishes nor schedules, publishing applies to every destination in a Brief, Queued is not delivery, future-content workflows publish once active while existing-content ones import for review (8 of 20). Inputs are described in prose only, formats per destination, JPEG, PNG or WebP up to 20 MB, carousel caps of 4, 10 and 20 by network, media at a downloadable HTTPS URL and a timezone with every scheduled time (4 of 15). Plain-language example requests and per-network failure reasons written for people; no example tool call, response or error shape (5 of 15). The endpoint path carries v1.1 and the registry holds 2026.10.17 and 2026.10.23; /whats-new/ is undated and no changelog was found (5 of 15). 0+5+8+4+5+5 = 27." }, "scores": { "a": 83, "b": 27 } }, { "by": 54, "category": "reliability", "leads": "late", "name": "Reliability", "reasons": { "a": "Better Stack page at zernio-status.com with components for the API, each network, schedulers, webhooks, inbox and analytics, read through its RSS feed (20). From 3 August to 1 November 2026 the feed lists many incidents, each partial by its own text. The longest touching the API, on 8 October from 14:44 to 15:52 UTC, had some customers see the dashboard and API slow or time out. On 19 October post creation failed for 21 minutes, and on 26 October many API requests failed for about 20 minutes. Reddit has been unavailable since 19 October because Reddit blocked third-party apps, and other items hit one network, the inbox or webhooks. No full outage of everything and nothing over an hour that wasn't partial, so minor only (20). Limits published by tier, 60, 600 or 1,200 requests a minute, a per-second analytics window and per-network posting caps (15). 429 carries Retry-After and X-RateLimit headers, and an Idempotency-Key covers posts and other writes (15). The terms state no SLA (0). GA (10). 20+20+15+15+0+10 = 80.", "b": "Hosted reading, for the connector and the service behind it. No status page was found. None is linked from the help centre, the contact page, the footer or the troubleshooting articles, and https://repostit.io/status/ did not load through our reader, which also fails on the home page (0). No readable incident history, so the floor (5). Repostit publishes posting quotas rather than request limits, 10 posts on the trial, 10 video posts a month on Basic, existing-content workflows up to 5 posts a day, plus per-network rules and 20 MB images through the connector; no request rate for the connector, and the terms only bar automated access faster than a human (6 of 15). No 429 or overload handling is documented. The Claude connector page says Queued means accepted, not delivered, and to check the existing result before retrying to avoid duplicate posts, and Brief locks queued posts against a second send; no idempotency key and no page says failed posts are retried (5 of 15). No SLA; the terms (7 March 2025) let Repostit modify or discontinue the service at any time and say nothing on uptime (0). The connector carries no beta label and its registry entry is active (10). 0+5+6+5+0+10 = 26." }, "scores": { "a": 80, "b": 26 } }, { "by": 42, "category": "transparency", "leads": "late", "name": "Transparency \u0026 trust", "reasons": { "a": "Closed API under published terms (last updated 9 October 2026), with the Node SDK under Apache-2.0 (15). The privacy policy, updated 26 October 2026, deletes data within 30 days of account deletion, keeps other data as long as needed, says content reached through the MCP or API isn't used to train models, and links a subprocessor list. A public DPA (19 October 2026, replacing a version dated 2 July 2026) is part of the terms with no signature needed, names ZERNIO SOFTWARE SL as processor, and deletes customer personal data within 10 business days of the end of the service, with backups within 30 days and logs within 90. The privacy policy also sets token lifetimes and deletion on disconnect for Google and Microsoft data. The statements agree, though general account data is kept as long as needed (26). No deprecation policy in practice. The changelog says a breaking change ships only as a new path version, yet breaking changes ship inside v1 on the day they're marked, and old getlate.dev URLs still redirect (6). The subprocessor list (9 October 2026) names 25 providers with purpose, data and transfer safeguard, and gives 14 days' notice of changes. Core hosting and the database are in London, and 18 entries say the location is provider-managed and not pinned to one region (15). 15+26+6+15 = 62.", "b": "Closed service. The terms of service (effective 7 March 2025, no revision since) name Repostit LLC of Newark, Delaware, with Delaware law and arbitration, take a non-exclusive licence to content only to run the service and say fees are non-refundable; every footer says Repostit, Inc., and the terms do not mention the connector (12 of 30). The privacy policy (29 July 2026) keeps data until the account is deleted or as needed, with no periods, deletes Pinterest credentials on disconnect but says nothing of other networks' tokens, names no DPA, and does not mention the connector or its 90-day offline access; the account deletion article gives no timeline and leaves network-side access to the user (10 of 30). No deprecation policy or dated notices; the terms promise notice of significant changes and the ChatGPT page names a pending version 1.1 without a date (3 of 20). Subprocessors are 'hosting providers, analytics services', unnamed, with transfers outside the user's country and no locations; the Tawk.to chat on the contact page and the Google Cloud Run host of the connector are not named in the policy (2 of 20). 12+10+3+2 = 27." }, "scores": { "a": 71, "b": 29 } }, { "by": 31, "category": "maintenance", "leads": "late", "name": "Maintenance \u0026 community", "reasons": { "a": "@zernio/node v0.2.1420 and zernio-sdk v1.4.1476 tagged on 1 November 2026 in their repositories, and changelog entries the same day (30). Hundreds of releases and 241 changelog entries dated 1 October or later (20). Public changelog and support. The SDK repositories are generated, so issue replies weren't a useful signal (12). Official registry entry com.zernio/zernio under its own domain, version 1.0.0 published 25 May 2026, still the latest on 1 November (15). The Node SDK runs ci, generate and publish workflows and regenerates from the OpenAPI spec several times a day (10). 30+20+12+15+10 = 87.", "b": "Closed service. The latest registry version is 2026.10.23, published 23 October 2026, and the connector article was updated 22 October 2026 (30). Dated changes in the last 90 days are the two registry versions of 17 and 23 October 2026; /whats-new/ is undated and the ChatGPT app's 1.1.0 (per the 3 November listing check) carries no date, so fewer than three dated releases (10 of 20). Support is email and weekday chat, 9am to 5pm Eastern, with replies within 24 hours; no public changelog with dates, forum or issue tracker (6 of 15). In the official MCP registry as io.github.hax98/repostit, a GitHub-verified namespace of a personal account; the entry links Repostit's own pages and its address matches the vendor's connector page, but no first-hand page ties the account to the company, so partial credit (10 of 15). No packages, public code or CI to judge (0 of 10). 30+10+6+10+0 = 56." }, "scores": { "a": 87, "b": 56 } }, { "by": 21, "category": "security", "leads": "late", "name": "Security \u0026 auth", "reasons": { "a": "API keys as Bearer tokens, restricted keys created through POST /v1/api-keys with any of ten resource groups switched off or limited to chosen profiles, and OAuth 2.1 with dynamic client registration on the MCP with eight scopes such as posts:read and analytics:read (30). Read-only keys and scopes are possible, members can be limited to profiles, and tools are annotated, but we found no approval guidance for publishing (14). The inbox, comments and DM tools return text from strangers and we found no prompt-injection guidance (0). A unified activity log endpoint (`GET /v1/logs`) covers publishing, connections, webhooks and messaging, webhook delivery logs are listed, X-Request-Id is on every response, and the security overview describes an append-only audit log of team-management actions for the owner. API calls aren't attributed to a key in a log we found (11). The DPA and pricing page say the SOC 2 Type II report and GDPR paperwork are available on request through the trust centre at trust.zernio.com. No security.txt (404 on 1 November) and no disclosure route, and the privacy contact is a named person's email (10). 30+14+0+11+10 = 65.", "b": "OAuth with dynamic client registration and no client secret, per Repostit's Claude connector page, with offline access that renews for up to 90 days from the first authorisation; social-network sign-ins stay in Repostit and provider tokens are not passed to the assistant. PKCE S256 is stated only in third-party metadata. No scopes are named; the page lists the permissions shown at sign-in (read accounts, create workflows and Briefs, schedule or publish, read delivery status). Revocation is by disconnecting in the client or asking support (18 of 30). A Brief is saved as a draft, Manual workflows wait for approval, and the help article says the assistant shows each step for confirmation before publishing (on ChatGPT 'may ask', depending on the client); no read-only mode, and an activated future-content workflow publishes on its own (8 of 20). Tools return the user's own accounts, Briefs and delivery results and read no comments or messages (10). Assistant-created posts appear under Post with a Comments \u0026 Activity log of each step, and Post History shows each network's response; no per-call log for the connector (8 of 15). security.txt did not load through our reader, and no disclosure policy, bug bounty or certification appears on any page read (0 of 20). 18+8+10+8+0 = 44." }, "scores": { "a": 65, "b": 44 } } ], "facts": [ { "a": "HTTP API", "b": "Platform", "name": "Kind" }, { "a": "Zernio", "b": "Repostit LLC", "name": "Vendor" }, { "a": "https://zernio.com/api/v1", "b": "https://repostit-mcp-cfjcykgqda-uc.a.run.app/mcp/v1.1", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP, stdio", "b": "Streamable HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth", "name": "Auth" }, { "a": "Freemium", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "none", "b": "Proprietary hosted service under Repostit's terms of service (effective 7 March 2025), which name Repostit LLC of Newark, Delaware. No source, SDK or package is published", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "com.zernio/zernio", "b": "io.github.hax98/repostit", "name": "MCP registry" }, { "a": "2026-11-01", "b": "2026-10-23", "name": "Last release" }, { "a": "2026-10-08", "b": "not read yet", "name": "Terms last updated" }, { "a": "2026-10-08", "b": "not read yet", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "not read yet", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "not read yet", "name": "Arbitration or class-action waiver" }, { "a": "46k npm/wk, 44k PyPI/wk", "b": "none", "name": "Popularity" }, { "a": "4/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Zernio (formerly Late) API + MCP scores 69 (B) on agent readiness against Repostit's 32.5 (F), and leads in every scored category.", "question": "Which is better for AI agents, Zernio (formerly Late) API + MCP or Repostit?" }, { "answer": "Yes. Zernio (formerly Late) API + MCP has a hosted endpoint at https://zernio.com/api/v1 and Repostit at https://repostit-mcp-cfjcykgqda-uc.a.run.app/mcp/v1.1.", "question": "Can an agent call Zernio (formerly Late) API + MCP and Repostit without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 80 against 26", "Schema \u0026 documentation, 83 against 27", "Agent ergonomics, 88 against 25", "Security \u0026 auth, 65 against 44", "Payments \u0026 pricing, 40 against 30", "Maintenance \u0026 community, 87 against 56", "Transparency \u0026 trust, 71 against 29" ], "also": [ "Runs on your own machine" ], "goodFor": "Agents and SaaS products that need posting, inbox and ads through one well-specified API with safe retries.", "slug": "late", "watchFor": "Breaking changes ship inside v1 on the day they're marked, 15 from 2 to 29 October 2026, while the changelog says they ship only as a new path version" }, { "aheadOn": null, "also": [ "No incidents deducted, where Zernio (formerly Late) API + MCP loses 5 points for them" ], "goodFor": "Creators, small businesses and agencies who post short vertical video on one network and want an assistant in Claude or ChatGPT to copy it to others on a schedule, set up reposting workflows and confirm what went out, without writing code.", "slug": "repostit", "watchFor": "No tool names, input schemas, annotations, scopes or error shapes are published, and no public REST API, SDK or OpenAPI file exists" } ], "history": { "late": [ { "causes": [ "terms", "evidence", "event" ], "date": "2026-11-01", "delta": 1.4, "from": 67.6, "fromGrade": "B", "to": 69, "toGrade": "B" }, { "causes": [ "method" ], "date": "2026-10-27", "delta": 0.1, "from": 67.5, "fromGrade": "B", "to": 67.6, "toGrade": "B" }, { "causes": [ "method" ], "date": "2026-10-08", "delta": 0, "from": 67.5, "fromGrade": "B", "to": 67.5, "toGrade": "B" } ], "repostit": null }, "job": { "capability": "social.post", "name": "Social posting" }, "others": [ { "json": "https://www.anchorterminal.com/compare/ayrshare-vs-late.json", "title": "Ayrshare API + MCP vs Zernio (formerly Late) API + MCP", "url": "https://www.anchorterminal.com/compare/ayrshare-vs-late" }, { "json": "https://www.anchorterminal.com/compare/ayrshare-vs-repostit.json", "title": "Ayrshare API + MCP vs Repostit", "url": "https://www.anchorterminal.com/compare/ayrshare-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/blotato-vs-late.json", "title": "Blotato vs Zernio (formerly Late) API + MCP", "url": "https://www.anchorterminal.com/compare/blotato-vs-late" }, { "json": "https://www.anchorterminal.com/compare/blotato-vs-repostit.json", "title": "Blotato vs Repostit", "url": "https://www.anchorterminal.com/compare/blotato-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/buffer-vs-late.json", "title": "Buffer API + MCP vs Zernio (formerly Late) API + MCP", "url": "https://www.anchorterminal.com/compare/buffer-vs-late" }, { "json": "https://www.anchorterminal.com/compare/buffer-vs-repostit.json", "title": "Buffer API + MCP vs Repostit", "url": "https://www.anchorterminal.com/compare/buffer-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/bundle-social-vs-late.json", "title": "bundle.social vs Zernio (formerly Late) API + MCP", "url": "https://www.anchorterminal.com/compare/bundle-social-vs-late" }, { "json": "https://www.anchorterminal.com/compare/bundle-social-vs-repostit.json", "title": "bundle.social vs Repostit", "url": "https://www.anchorterminal.com/compare/bundle-social-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/late-vs-metricool.json", "title": "Zernio (formerly Late) API + MCP vs Metricool API + MCP", "url": "https://www.anchorterminal.com/compare/late-vs-metricool" }, { "json": "https://www.anchorterminal.com/compare/late-vs-mixpost.json", "title": "Zernio (formerly Late) API + MCP vs Mixpost API + MCP", "url": "https://www.anchorterminal.com/compare/late-vs-mixpost" }, { "json": "https://www.anchorterminal.com/compare/late-vs-oneup.json", "title": "Zernio (formerly Late) API + MCP vs OneUp API + MCP", "url": "https://www.anchorterminal.com/compare/late-vs-oneup" }, { "json": "https://www.anchorterminal.com/compare/late-vs-post-bridge.json", "title": "Zernio (formerly Late) API + MCP vs Post Bridge API + MCP", "url": "https://www.anchorterminal.com/compare/late-vs-post-bridge" }, { "json": "https://www.anchorterminal.com/compare/late-vs-postiz.json", "title": "Zernio (formerly Late) API + MCP vs Postiz API + MCP", "url": "https://www.anchorterminal.com/compare/late-vs-postiz" }, { "json": "https://www.anchorterminal.com/compare/late-vs-publer.json", "title": "Zernio (formerly Late) API + MCP vs Publer API + MCP", "url": "https://www.anchorterminal.com/compare/late-vs-publer" }, { "json": "https://www.anchorterminal.com/compare/late-vs-typefully.json", "title": "Zernio (formerly Late) API + MCP vs Typefully", "url": "https://www.anchorterminal.com/compare/late-vs-typefully" }, { "json": "https://www.anchorterminal.com/compare/late-vs-upload-post.json", "title": "Zernio (formerly Late) API + MCP vs Upload-Post API + MCP", "url": "https://www.anchorterminal.com/compare/late-vs-upload-post" }, { "json": "https://www.anchorterminal.com/compare/metricool-vs-repostit.json", "title": "Metricool API + MCP vs Repostit", "url": "https://www.anchorterminal.com/compare/metricool-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/mixpost-vs-repostit.json", "title": "Mixpost API + MCP vs Repostit", "url": "https://www.anchorterminal.com/compare/mixpost-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/oneup-vs-repostit.json", "title": "OneUp API + MCP vs Repostit", "url": "https://www.anchorterminal.com/compare/oneup-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/post-bridge-vs-repostit.json", "title": "Post Bridge API + MCP vs Repostit", "url": "https://www.anchorterminal.com/compare/post-bridge-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/postiz-vs-repostit.json", "title": "Postiz API + MCP vs Repostit", "url": "https://www.anchorterminal.com/compare/postiz-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/publer-vs-repostit.json", "title": "Publer API + MCP vs Repostit", "url": "https://www.anchorterminal.com/compare/publer-vs-repostit" }, { "json": "https://www.anchorterminal.com/compare/repostit-vs-typefully.json", "title": "Repostit vs Typefully", "url": "https://www.anchorterminal.com/compare/repostit-vs-typefully" }, { "json": "https://www.anchorterminal.com/compare/repostit-vs-upload-post.json", "title": "Repostit vs Upload-Post API + MCP", "url": "https://www.anchorterminal.com/compare/repostit-vs-upload-post" }, { "json": "https://www.anchorterminal.com/compare/late-vs-sprout-social.json", "title": "Zernio (formerly Late) API + MCP vs Sprout Social API", "url": "https://www.anchorterminal.com/compare/late-vs-sprout-social" }, { "json": "https://www.anchorterminal.com/compare/late-vs-x-mcp.json", "title": "Zernio (formerly Late) API + MCP vs X MCP", "url": "https://www.anchorterminal.com/compare/late-vs-x-mcp" }, { "json": "https://www.anchorterminal.com/compare/late-vs-socialcannon.json", "title": "Zernio (formerly Late) API + MCP vs SocialCannon", "url": "https://www.anchorterminal.com/compare/late-vs-socialcannon" }, { "json": "https://www.anchorterminal.com/compare/repostit-vs-socialcannon.json", "title": "Repostit vs SocialCannon", "url": "https://www.anchorterminal.com/compare/repostit-vs-socialcannon" } ], "panel": null, "scores": [ { "by": 54, "edge": "late", "key": "reliability", "late": 80, "name": "Reliability", "repostit": 26, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 56, "edge": "late", "key": "schema", "late": 83, "name": "Schema \u0026 documentation", "repostit": 27, "weight": 13 }, { "by": 63, "edge": "late", "key": "ergonomics", "late": 88, "name": "Agent ergonomics", "repostit": 25, "weight": 13 }, { "by": 21, "edge": "late", "key": "security", "late": 65, "name": "Security \u0026 auth", "repostit": 44, "weight": 14 }, { "by": 10, "edge": "late", "key": "payments", "late": 40, "name": "Payments \u0026 pricing", "repostit": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 31, "edge": "late", "key": "maintenance", "late": 87, "name": "Maintenance \u0026 community", "repostit": 56, "weight": 7 }, { "by": 42, "edge": "late", "key": "transparency", "late": 71, "name": "Transparency \u0026 trust", "repostit": 29, "weight": 7 } ], "summary": "Zernio (formerly Late) API + MCP scores 69 (B) on agent readiness against Repostit's 32.5 (F), and leads in every scored category. Both do social posting.", "tasks": null, "tutorials": [ { "title": "Save an announcement draft with Zernio", "tool": "late", "url": "https://www.anchorterminal.com/tutorials/late/" } ], "verdicts": { "late": "Idempotency-Key on post creation and other writes, kept 24 hours, and a public DPA with a subprocessor list. Breaking changes keep shipping inside v1 on the day they're marked, 15 from 2 to 29 October 2026, while the changelog says they ship only as a new path version.", "repostit": "An OAuth connector lets an agent list accounts, draft and schedule posts, build reposting workflows and check delivery, with drafts saved before anything publishes and a 14-day trial without a card. Tool names, schemas, scopes and error shapes are unpublished, the endpoint sits on a Cloud Run host, and there is no status page, public API or named subprocessor." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/late-vs-repostit", "json": "https://www.anchorterminal.com/compare/late-vs-repostit.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/late-vs-repostit.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/late-vs-repostit.min.md" }, "markdown": "Zernio (formerly Late) API + MCP scores 69 (B) on agent readiness against Repostit's 32.5 (F), and leads in every scored category. Both do social posting.\n\n- Zernio (formerly Late) API + MCP: grade B, 69/100, rank #231 of 1272. Markdown https://www.anchorterminal.com/tools/late.md · JSON https://www.anchorterminal.com/api/v1/tools/late.json\n- Repostit: grade F, 32.5/100, rank #1191 of 1272. Markdown https://www.anchorterminal.com/tools/repostit.md · JSON https://www.anchorterminal.com/api/v1/tools/repostit.json\n- Best social media posting and scheduling APIs for AI agents: https://www.anchorterminal.com/best/social-media/index.md\n- All 132 social comparisons: https://www.anchorterminal.com/compare/social-media/index.md\n\n## Which one, for what\n\n### Zernio (formerly Late) API + MCP (B)\n\nGood for: Agents and SaaS products that need posting, inbox and ads through one well-specified API with safe retries.\n\nAhead on:\n- Reliability, 80 against 26\n- Schema \u0026 documentation, 83 against 27\n- Agent ergonomics, 88 against 25\n- Security \u0026 auth, 65 against 44\n- Payments \u0026 pricing, 40 against 30\n- Maintenance \u0026 community, 87 against 56\n- Transparency \u0026 trust, 71 against 29\n\nAlso in its favour:\n- Runs on your own machine\n\nWatch for: Breaking changes ship inside v1 on the day they're marked, 15 from 2 to 29 October 2026, while the changelog says they ship only as a new path version\n\n### Repostit (F)\n\nGood for: Creators, small businesses and agencies who post short vertical video on one network and want an assistant in Claude or ChatGPT to copy it to others on a schedule, set up reposting workflows and confirm what went out, without writing code.\n\nAlso in its favour:\n- No incidents deducted, where Zernio (formerly Late) API + MCP loses 5 points for them\n\nWatch for: No tool names, input schemas, annotations, scopes or error shapes are published, and no public REST API, SDK or OpenAPI file exists\n\n\n## Why the edge\n\n### Agent ergonomics: Zernio (formerly Late) API + MCP +63\n\n- Zernio (formerly Late) API + MCP (88): The tools page lists 20 core tools and says tools/list returns about 50 everyday ones, with search_tools and call_tool loading the long tail on demand (5 plus 10). Page and cursor pagination on list endpoints (20). ErrorResponse codes such as idempotency_conflict, and the MCP returns the list of accounts when account_id is ambiguous (18). Idempotency-Key with 24-hour keys and an Idempotent-Replayed header, plus readOnlyHint, destructiveHint and openWorldHint on tools (20). The SDKs page lists official clients in eight languages, including Node and Python (15). 15+20+18+20+15 = 88.\n- Repostit (25): MCP reading. The tool count is not published. The connector pages describe seven actions (list accounts, create, schedule and publish a Brief, check delivery, create a workflow, send a connection link), which suggests a small set, but the definitions were not read, so a middle reading rather than full marks (10 of 25). No pagination, filtering or output-size controls are documented (0 of 20). Delivery checks report a result per destination with public links when the network gives one, and the help centre lists failure reasons per network, but no error codes or connector error messages are documented (5 of 20). No idempotency key and no readOnlyHint or destructiveHint seen; Briefs start as drafts, queued Briefs are locked against a second send, Manual workflows hold posts for approval and the guidance says to check before retrying (6 of 20). Requests are made in plain language with few stated requirements (an HTTPS media URL, a timezone); no SDK in any language (4 of 15). 10+0+5+6+4 = 25.\n\n### Schema \u0026 documentation: Zernio (formerly Late) API + MCP +56\n\n- Zernio (formerly Late) API + MCP (83): OpenAPI 3.1 at zernio.com/openapi.yaml, API version 1.431.1 on 1 November with 761 paths (25). llms.txt and Markdown pages (10). The MCP has a docs_search tool and annotated tools. We didn't read tool descriptions in source (12). Inputs typed in the spec with resource groups and enums (12). A shared ErrorResponse with a machine code and message, X-Request-Id on responses, examples on operations (12). Dated public changelog with JSON and RSS feeds and a changelog API, but breaking changes ship inside v1, 15 of them marked `breaking_change` from 2 to 29 October (12). 25+10+12+12+12+12 = 83.\n- Repostit (27): MCP reading, since the connector is the only surface an outside agent reaches; no public REST API, developer page, OpenAPI file, SDK or package was found in the help centre, /whats-new/, the sitemap, llms.txt, GitHub, npm or the MCP registry. No tool names or input schemas are published anywhere, and no session was opened to read them (0 of 25). llms.txt exists, but it is a Rank Math index of site URLs that includes theme placeholder entries, and help articles are HTML only (5 of 10). The Claude connector page says what each step is for and when not to use it, list accounts before choosing a destination, a Brief saves a draft and neither publishes nor schedules, publishing applies to every destination in a Brief, Queued is not delivery, future-content workflows publish once active while existing-content ones import for review (8 of 20). Inputs are described in prose only, formats per destination, JPEG, PNG or WebP up to 20 MB, carousel caps of 4, 10 and 20 by network, media at a downloadable HTTPS URL and a timezone with every scheduled time (4 of 15). Plain-language example requests and per-network failure reasons written for people; no example tool call, response or error shape (5 of 15). The endpoint path carries v1.1 and the registry holds 2026.10.17 and 2026.10.23; /whats-new/ is undated and no changelog was found (5 of 15). 0+5+8+4+5+5 = 27.\n\n### Reliability: Zernio (formerly Late) API + MCP +54\n\n- Zernio (formerly Late) API + MCP (80): Better Stack page at zernio-status.com with components for the API, each network, schedulers, webhooks, inbox and analytics, read through its RSS feed (20). From 3 August to 1 November 2026 the feed lists many incidents, each partial by its own text. The longest touching the API, on 8 October from 14:44 to 15:52 UTC, had some customers see the dashboard and API slow or time out. On 19 October post creation failed for 21 minutes, and on 26 October many API requests failed for about 20 minutes. Reddit has been unavailable since 19 October because Reddit blocked third-party apps, and other items hit one network, the inbox or webhooks. No full outage of everything and nothing over an hour that wasn't partial, so minor only (20). Limits published by tier, 60, 600 or 1,200 requests a minute, a per-second analytics window and per-network posting caps (15). 429 carries Retry-After and X-RateLimit headers, and an Idempotency-Key covers posts and other writes (15). The terms state no SLA (0). GA (10). 20+20+15+15+0+10 = 80.\n- Repostit (26): Hosted reading, for the connector and the service behind it. No status page was found. None is linked from the help centre, the contact page, the footer or the troubleshooting articles, and https://repostit.io/status/ did not load through our reader, which also fails on the home page (0). No readable incident history, so the floor (5). Repostit publishes posting quotas rather than request limits, 10 posts on the trial, 10 video posts a month on Basic, existing-content workflows up to 5 posts a day, plus per-network rules and 20 MB images through the connector; no request rate for the connector, and the terms only bar automated access faster than a human (6 of 15). No 429 or overload handling is documented. The Claude connector page says Queued means accepted, not delivered, and to check the existing result before retrying to avoid duplicate posts, and Brief locks queued posts against a second send; no idempotency key and no page says failed posts are retried (5 of 15). No SLA; the terms (7 March 2025) let Repostit modify or discontinue the service at any time and say nothing on uptime (0). The connector carries no beta label and its registry entry is active (10). 0+5+6+5+0+10 = 26.\n\n### Transparency \u0026 trust: Zernio (formerly Late) API + MCP +42\n\n- Zernio (formerly Late) API + MCP (71): Closed API under published terms (last updated 9 October 2026), with the Node SDK under Apache-2.0 (15). The privacy policy, updated 26 October 2026, deletes data within 30 days of account deletion, keeps other data as long as needed, says content reached through the MCP or API isn't used to train models, and links a subprocessor list. A public DPA (19 October 2026, replacing a version dated 2 July 2026) is part of the terms with no signature needed, names ZERNIO SOFTWARE SL as processor, and deletes customer personal data within 10 business days of the end of the service, with backups within 30 days and logs within 90. The privacy policy also sets token lifetimes and deletion on disconnect for Google and Microsoft data. The statements agree, though general account data is kept as long as needed (26). No deprecation policy in practice. The changelog says a breaking change ships only as a new path version, yet breaking changes ship inside v1 on the day they're marked, and old getlate.dev URLs still redirect (6). The subprocessor list (9 October 2026) names 25 providers with purpose, data and transfer safeguard, and gives 14 days' notice of changes. Core hosting and the database are in London, and 18 entries say the location is provider-managed and not pinned to one region (15). 15+26+6+15 = 62.\n- Repostit (29): Closed service. The terms of service (effective 7 March 2025, no revision since) name Repostit LLC of Newark, Delaware, with Delaware law and arbitration, take a non-exclusive licence to content only to run the service and say fees are non-refundable; every footer says Repostit, Inc., and the terms do not mention the connector (12 of 30). The privacy policy (29 July 2026) keeps data until the account is deleted or as needed, with no periods, deletes Pinterest credentials on disconnect but says nothing of other networks' tokens, names no DPA, and does not mention the connector or its 90-day offline access; the account deletion article gives no timeline and leaves network-side access to the user (10 of 30). No deprecation policy or dated notices; the terms promise notice of significant changes and the ChatGPT page names a pending version 1.1 without a date (3 of 20). Subprocessors are 'hosting providers, analytics services', unnamed, with transfers outside the user's country and no locations; the Tawk.to chat on the contact page and the Google Cloud Run host of the connector are not named in the policy (2 of 20). 12+10+3+2 = 27.\n\n### Maintenance \u0026 community: Zernio (formerly Late) API + MCP +31\n\n- Zernio (formerly Late) API + MCP (87): @zernio/node v0.2.1420 and zernio-sdk v1.4.1476 tagged on 1 November 2026 in their repositories, and changelog entries the same day (30). Hundreds of releases and 241 changelog entries dated 1 October or later (20). Public changelog and support. The SDK repositories are generated, so issue replies weren't a useful signal (12). Official registry entry com.zernio/zernio under its own domain, version 1.0.0 published 25 May 2026, still the latest on 1 November (15). The Node SDK runs ci, generate and publish workflows and regenerates from the OpenAPI spec several times a day (10). 30+20+12+15+10 = 87.\n- Repostit (56): Closed service. The latest registry version is 2026.10.23, published 23 October 2026, and the connector article was updated 22 October 2026 (30). Dated changes in the last 90 days are the two registry versions of 17 and 23 October 2026; /whats-new/ is undated and the ChatGPT app's 1.1.0 (per the 3 November listing check) carries no date, so fewer than three dated releases (10 of 20). Support is email and weekday chat, 9am to 5pm Eastern, with replies within 24 hours; no public changelog with dates, forum or issue tracker (6 of 15). In the official MCP registry as io.github.hax98/repostit, a GitHub-verified namespace of a personal account; the entry links Repostit's own pages and its address matches the vendor's connector page, but no first-hand page ties the account to the company, so partial credit (10 of 15). No packages, public code or CI to judge (0 of 10). 30+10+6+10+0 = 56.\n\n### Security \u0026 auth: Zernio (formerly Late) API + MCP +21\n\n- Zernio (formerly Late) API + MCP (65): API keys as Bearer tokens, restricted keys created through POST /v1/api-keys with any of ten resource groups switched off or limited to chosen profiles, and OAuth 2.1 with dynamic client registration on the MCP with eight scopes such as posts:read and analytics:read (30). Read-only keys and scopes are possible, members can be limited to profiles, and tools are annotated, but we found no approval guidance for publishing (14). The inbox, comments and DM tools return text from strangers and we found no prompt-injection guidance (0). A unified activity log endpoint (`GET /v1/logs`) covers publishing, connections, webhooks and messaging, webhook delivery logs are listed, X-Request-Id is on every response, and the security overview describes an append-only audit log of team-management actions for the owner. API calls aren't attributed to a key in a log we found (11). The DPA and pricing page say the SOC 2 Type II report and GDPR paperwork are available on request through the trust centre at trust.zernio.com. No security.txt (404 on 1 November) and no disclosure route, and the privacy contact is a named person's email (10). 30+14+0+11+10 = 65.\n- Repostit (44): OAuth with dynamic client registration and no client secret, per Repostit's Claude connector page, with offline access that renews for up to 90 days from the first authorisation; social-network sign-ins stay in Repostit and provider tokens are not passed to the assistant. PKCE S256 is stated only in third-party metadata. No scopes are named; the page lists the permissions shown at sign-in (read accounts, create workflows and Briefs, schedule or publish, read delivery status). Revocation is by disconnecting in the client or asking support (18 of 30). A Brief is saved as a draft, Manual workflows wait for approval, and the help article says the assistant shows each step for confirmation before publishing (on ChatGPT 'may ask', depending on the client); no read-only mode, and an activated future-content workflow publishes on its own (8 of 20). Tools return the user's own accounts, Briefs and delivery results and read no comments or messages (10). Assistant-created posts appear under Post with a Comments \u0026 Activity log of each step, and Post History shows each network's response; no per-call log for the connector (8 of 15). security.txt did not load through our reader, and no disclosure policy, bug bounty or certification appears on any page read (0 of 20). 18+8+10+8+0 = 44.\n\n## Score by category\n\n| Category | Weight | Zernio (formerly Late) API + MCP | Repostit | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 80 | 26 | Zernio (formerly Late) API + MCP +54 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 83 | 27 | Zernio (formerly Late) API + MCP +56 |\n| Agent ergonomics | 13% (16.2 this run) | 88 | 25 | Zernio (formerly Late) API + MCP +63 |\n| Security \u0026 auth | 14% (17.5 this run) | 65 | 44 | Zernio (formerly Late) API + MCP +21 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 30 | Zernio (formerly Late) API + MCP +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 87 | 56 | Zernio (formerly Late) API + MCP +31 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 29 | Zernio (formerly Late) API + MCP +42 |\n| Negative events | ≤15 | -5 | 0 | |\n| **Total** | | **69 · B** | **32.5 · F** | |\n\n## Facts side by side\n\n| Fact | Zernio (formerly Late) API + MCP | Repostit |\n| --- | --- | --- |\n| Kind | HTTP API | Platform |\n| Vendor | Zernio | Repostit LLC |\n| Hosted endpoint | `https://zernio.com/api/v1` | `https://repostit-mcp-cfjcykgqda-uc.a.run.app/mcp/v1.1` |\n| Transports | HTTP, Streamable HTTP, stdio | Streamable HTTP |\n| Auth | OAuth or key | OAuth |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | none | Proprietary hosted service under Repostit's terms of service (effective 7 March 2025), which name Repostit LLC of Newark, Delaware. No source, SDK or package is published |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | `com.zernio/zernio` | `io.github.hax98/repostit` |\n| Last release | 2026-11-01 | 2026-10-23 |\n| Terms last updated | 2026-10-08 | not read yet |\n| Privacy policy last updated | 2026-10-08 | not read yet |\n| Customer content may train models | not found in the text | not read yet |\n| Terms restrict automated access | not found in the text | not read yet |\n| Terms restrict benchmarking | not found in the text | not read yet |\n| Terms or service can change without notice | not found in the text | not read yet |\n| Arbitration or class-action waiver | not found in the text | not read yet |\n| Popularity | 46k npm/wk, 44k PyPI/wk | none |\n| Agent reviews | 4/5 (2) | none |\n\n## How the scores have moved\n\n### Zernio (formerly Late) API + MCP\n\n- +1.4 on 1 November 2026: terms, new evidence, negative event\n- +0.1 on 27 October 2026: checklist\n- no change on 8 October 2026: checklist\n\n### Repostit\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Zernio (formerly Late) API + MCP.** Idempotency-Key on post creation and other writes, kept 24 hours, and a public DPA with a subprocessor list. Breaking changes keep shipping inside v1 on the day they're marked, 15 from 2 to 29 October 2026, while the changelog says they ship only as a new path version.\n\n**Repostit.** An OAuth connector lets an agent list accounts, draft and schedule posts, build reposting workflows and check delivery, with drafts saved before anything publishes and a 14-day trial without a card. Tool names, schemas, scopes and error shapes are unpublished, the endpoint sits on a Cloud Run host, and there is no status page, public API or named subprocessor.\n\n## Before you call either\n\n### Zernio (formerly Late) API + MCP\n\n1. Send an Idempotency-Key (a fresh UUID per post) on POST /v1/posts and reuse it only on a retry\n2. Give timestamps an explicit offset, because times without one follow the profile timezone when it has one\n3. Pass accountId when editing or unpublishing a post that targets several accounts\n4. Wait Retry-After on 429. Analytics endpoints have their own per-second window\n5. Read the changelog's `breaking_change` entries before each deploy and pin the SDK version, because v1 changes without a new path\n\n### Repostit\n\n1. List connected accounts first and confirm names and platforms with the user before choosing destinations; a missing account must be connected in Repostit Connections, not through the agent.\n2. Pass media as a downloadable HTTPS URL, never a local filename, and give every scheduled time with an explicit timezone.\n3. Treat Queued as accepted, not published; check delivery status and public links before reporting success, and check the existing result before any retry to avoid duplicate posts.\n4. Creating a future-content workflow makes it publish on its own once active; prefer existing-content workflows or Manual mode when the user wants to review first.\n5. On the trial, each destination counts as one of 10 posts and Basic allows 10 video posts a month; ask before fanning one Brief out to many networks.\n\n## Tutorials\n\n- [Save an announcement draft with Zernio](https://www.anchorterminal.com/tutorials/late/), for Zernio (formerly Late) API + MCP\n\n## Questions\n\n### Which is better for AI agents, Zernio (formerly Late) API + MCP or Repostit?\n\nZernio (formerly Late) API + MCP scores 69 (B) on agent readiness against Repostit's 32.5 (F), and leads in every scored category.\n\n### Can an agent call Zernio (formerly Late) API + MCP and Repostit without installing anything?\n\nYes. Zernio (formerly Late) API + MCP has a hosted endpoint at https://zernio.com/api/v1 and Repostit at https://repostit-mcp-cfjcykgqda-uc.a.run.app/mcp/v1.1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/late-vs-repostit.json, and with the fewest tokens: https://www.anchorterminal.com/compare/late-vs-repostit.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"late\", \"b\": \"repostit\"}`. From a terminal: `anchor compare late repostit`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/late.json and https://www.anchorterminal.com/api/v1/tools/repostit.json\n\n## Other comparisons with Zernio (formerly Late) API + MCP or Repostit\n\n- [Ayrshare API + MCP vs Zernio (formerly Late) API + MCP](https://www.anchorterminal.com/compare/ayrshare-vs-late.md)\n- [Ayrshare API + MCP vs Repostit](https://www.anchorterminal.com/compare/ayrshare-vs-repostit.md)\n- [Blotato vs Zernio (formerly Late) API + MCP](https://www.anchorterminal.com/compare/blotato-vs-late.md)\n- [Blotato vs Repostit](https://www.anchorterminal.com/compare/blotato-vs-repostit.md)\n- [Buffer API + MCP vs Zernio (formerly Late) API + MCP](https://www.anchorterminal.com/compare/buffer-vs-late.md)\n- [Buffer API + MCP vs Repostit](https://www.anchorterminal.com/compare/buffer-vs-repostit.md)\n- [bundle.social vs Zernio (formerly Late) API + MCP](https://www.anchorterminal.com/compare/bundle-social-vs-late.md)\n- [bundle.social vs Repostit](https://www.anchorterminal.com/compare/bundle-social-vs-repostit.md)\n- [Zernio (formerly Late) API + MCP vs Metricool API + MCP](https://www.anchorterminal.com/compare/late-vs-metricool.md)\n- [Zernio (formerly Late) API + MCP vs Mixpost API + MCP](https://www.anchorterminal.com/compare/late-vs-mixpost.md)\n- [Zernio (formerly Late) API + MCP vs OneUp API + MCP](https://www.anchorterminal.com/compare/late-vs-oneup.md)\n- [Zernio (formerly Late) API + MCP vs Post Bridge API + MCP](https://www.anchorterminal.com/compare/late-vs-post-bridge.md)\n- [Zernio (formerly Late) API + MCP vs Postiz API + MCP](https://www.anchorterminal.com/compare/late-vs-postiz.md)\n- [Zernio (formerly Late) API + MCP vs Publer API + MCP](https://www.anchorterminal.com/compare/late-vs-publer.md)\n- [Zernio (formerly Late) API + MCP vs Typefully](https://www.anchorterminal.com/compare/late-vs-typefully.md)\n- [Zernio (formerly Late) API + MCP vs Upload-Post API + MCP](https://www.anchorterminal.com/compare/late-vs-upload-post.md)\n- [Metricool API + MCP vs Repostit](https://www.anchorterminal.com/compare/metricool-vs-repostit.md)\n- [Mixpost API + MCP vs Repostit](https://www.anchorterminal.com/compare/mixpost-vs-repostit.md)\n- [OneUp API + MCP vs Repostit](https://www.anchorterminal.com/compare/oneup-vs-repostit.md)\n- [Post Bridge API + MCP vs Repostit](https://www.anchorterminal.com/compare/post-bridge-vs-repostit.md)\n- [Postiz API + MCP vs Repostit](https://www.anchorterminal.com/compare/postiz-vs-repostit.md)\n- [Publer API + MCP vs Repostit](https://www.anchorterminal.com/compare/publer-vs-repostit.md)\n- [Repostit vs Typefully](https://www.anchorterminal.com/compare/repostit-vs-typefully.md)\n- [Repostit vs Upload-Post API + MCP](https://www.anchorterminal.com/compare/repostit-vs-upload-post.md)\n- [Zernio (formerly Late) API + MCP vs Sprout Social API](https://www.anchorterminal.com/compare/late-vs-sprout-social.md)\n- [Zernio (formerly Late) API + MCP vs X MCP](https://www.anchorterminal.com/compare/late-vs-x-mcp.md)\n- [Zernio (formerly Late) API + MCP vs SocialCannon](https://www.anchorterminal.com/compare/late-vs-socialcannon.md)\n- [Repostit vs SocialCannon](https://www.anchorterminal.com/compare/repostit-vs-socialcannon.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-03", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Zernio (formerly Late) API + MCP vs Repostit", "url": "" } ], "description": "Zernio scores 69 (B) to Repostit's 32.5 (F) for social posting. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Zernio (formerly Late) API + MCP B 69", "Repostit F 32.5", "scores" ], "h1": "Zernio (formerly Late) API + MCP vs Repostit", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/late-vs-repostit", "published": "2026-10-01", "section": "tools", "title": "Zernio vs Repostit for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-11-03", "url": "https://www.anchorterminal.com/compare/late-vs-repostit" }, "tokens": { "markdown": 6150, "slim": 4030 }, "version": 1 }